This interactive scatter plot visualizes the Iris dataset, letting users compare sepal and petal measurements across flower species. Users switch the x and y axes via React Dropdown menus, while three colors distinguish species through a custom color legend. The visualization is built with React and D3 v5, using scaleLinear for axes and scaleOrdinal for color mapping, with SVG circles rendered by a Marks component and data loaded asynchronously via d3.csv.